August 2024 - Linux-stable-mirror

[PATCH v2 0/2] media: imx335: Fix reset-gpio handling

by Umang Jain

These couple of patches intends to fix the reset-gpio handling for imx335 driver. Patch 1/2 mentions reset-gpio polarity in DT binding example. It is ACTIVE_LOW according to the data sheet. Patch 2/2 fixes the logical value of reset-gpio during power-on/power-off sequence. -- Changes in v2: - Also include reset-gpio polarity, mention in DT binding - Add Fixes tag in 2/2 - Set the reset line to high during init time in 2/2 Link to v1: https://lore.kernel.org/linux-media/tyo5etjwsfznuk6vzwqmcphbu4pz4lskrg3fjie… Umang Jain (2): dt-bindings: imx335: Mention reset-gpio polarity media: imx335: Fix reset-gpio handling .../devicetree/bindings/media/i2c/sony,imx335.yaml | 2 ++ drivers/media/i2c/imx335.c | 8 ++++---- 2 files changed, 6 insertions(+), 4 deletions(-) -- 2.45.0

2 months

6
19
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[PATCH V3 0/8] Add camera clock controller support for SM8150

by Satya Priya Kakitapalli

Add camcc support and Regera PLL ops. Also, fix the pll post div mask. Changes in V3: - Split the fixes into separate patches, remove RETAIN_FF flag for gdscs and document the BIT(15) of pll alpha value. - Link to v2: https://lore.kernel.org/all/20240702-camcc-support-sm8150-v2-1-4baf54ec7333… Changes in v2: - As per Konrad's comments, re-use the zonda pll code for regera, as both are mostly same. - Fix the zonda_set_rate API and also the pll_post_div shift used in trion pll post div set rate API - Link to v1: https://lore.kernel.org/r/20240229-camcc-support-sm8150-v1-0-8c28c6c87990@q… Satya Priya Kakitapalli (7): clk: qcom: clk-alpha-pll: Fix the pll post div mask clk: qcom: clk-alpha-pll: Fix the trion pll postdiv set rate API clk: qcom: clk-alpha-pll: Fix zonda set_rate failure when PLL is disabled clk: qcom: clk-alpha-pll: Update set_rate for Zonda PLL dt-bindings: clock: qcom: Add SM8150 camera clock controller clk: qcom: Add camera clock controller driver for SM8150 arm64: dts: qcom: Add camera clock controller for sm8150 Taniya Das (1): clk: qcom: clk-alpha-pll: Add support for Regera PLL ops .../bindings/clock/qcom,sm8150-camcc.yaml | 77 + arch/arm64/boot/dts/qcom/sa8155p.dtsi | 4 + arch/arm64/boot/dts/qcom/sm8150.dtsi | 13 + drivers/clk/qcom/Kconfig | 9 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/camcc-sm8150.c | 2159 +++++++++++++++++ drivers/clk/qcom/clk-alpha-pll.c | 57 +- drivers/clk/qcom/clk-alpha-pll.h | 5 + include/dt-bindings/clock/qcom,sm8150-camcc.h | 135 ++ 9 files changed, 2456 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/qcom,sm8150-camcc.yaml create mode 100644 drivers/clk/qcom/camcc-sm8150.c create mode 100644 include/dt-bindings/clock/qcom,sm8150-camcc.h -- 2.25.1

2 months

4
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[PATCH net 0/2] mptcp: fix duplicate data handling

by Matthieu Baerts (NGI0)

In some cases, the subflow-level's copied_seq counter was incorrectly increased, leading to an unexpected subflow reset. Patch 1/2 fixes the RCVPRUNED MIB counter that was attached to the wrong event since its introduction in v5.14, backported to v5.11. Patch 2/2 fixes the copied_seq counter issues, is present since v5.10. Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> --- Paolo Abeni (2): mptcp: fix bad RCVPRUNED mib accounting mptcp: fix duplicate data handling net/mptcp/protocol.c | 8 ++++---- net/mptcp/subflow.c | 16 ++++++++++++---- 2 files changed, 16 insertions(+), 8 deletions(-) --- base-commit: 0bf50cead4c4710d9f704778c32ab8af47ddf070 change-id: 20240731-upstream-net-20240731-mptcp-dup-data-f922353130af Best regards, -- Matthieu Baerts (NGI0) <matttbe(a)kernel.org>

2 months

2
3
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[PATCH v2] mm: list_lru: fix UAF for memory cgroup

by Muchun Song

The mem_cgroup_from_slab_obj() is supposed to be called under rcu lock or cgroup_mutex or others which could prevent returned memcg from being freed. Fix it by adding missing rcu read lock. Fixes: 0a97c01cd20b ("list_lru: allow explicit memcg and NUMA node selection") Signed-off-by: Muchun Song <songmuchun(a)bytedance.com> Acked-by: Shakeel Butt <shakeel.butt(a)linux.dev> Cc: <stable(a)vger.kernel.org> --- v2: Only grab rcu lock when necessary (Vlastimil Babka) mm/list_lru.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) diff --git a/mm/list_lru.c b/mm/list_lru.c index a29d96929d7c7..9b7ff06e9d326 100644 --- a/mm/list_lru.c +++ b/mm/list_lru.c @@ -85,6 +85,7 @@ list_lru_from_memcg_idx(struct list_lru *lru, int nid, int idx) } #endif /* CONFIG_MEMCG */ +/* The caller must ensure the memcg lifetime. */ bool list_lru_add(struct list_lru *lru, struct list_head *item, int nid, struct mem_cgroup *memcg) { @@ -109,14 +110,22 @@ EXPORT_SYMBOL_GPL(list_lru_add); bool list_lru_add_obj(struct list_lru *lru, struct list_head *item) { + bool ret; int nid = page_to_nid(virt_to_page(item)); - struct mem_cgroup *memcg = list_lru_memcg_aware(lru) ? - mem_cgroup_from_slab_obj(item) : NULL; - return list_lru_add(lru, item, nid, memcg); + if (list_lru_memcg_aware(lru)) { + rcu_read_lock(); + ret = list_lru_add(lru, item, nid, mem_cgroup_from_slab_obj(item)); + rcu_read_unlock(); + } else { + ret = list_lru_add(lru, item, nid, NULL); + } + + return ret; } EXPORT_SYMBOL_GPL(list_lru_add_obj); +/* The caller must ensure the memcg lifetime. */ bool list_lru_del(struct list_lru *lru, struct list_head *item, int nid, struct mem_cgroup *memcg) { @@ -139,11 +148,18 @@ EXPORT_SYMBOL_GPL(list_lru_del); bool list_lru_del_obj(struct list_lru *lru, struct list_head *item) { + bool ret; int nid = page_to_nid(virt_to_page(item)); - struct mem_cgroup *memcg = list_lru_memcg_aware(lru) ? - mem_cgroup_from_slab_obj(item) : NULL; - return list_lru_del(lru, item, nid, memcg); + if (list_lru_memcg_aware(lru)) { + rcu_read_lock(); + ret = list_lru_del(lru, item, nid, mem_cgroup_from_slab_obj(item)); + rcu_read_unlock(); + } else { + ret = list_lru_del(lru, item, nid, NULL); + } + + return ret; } EXPORT_SYMBOL_GPL(list_lru_del_obj); -- 2.20.1

2 months

2
1
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[PATCH iwl-net v2 0/3] igc bug fixes related to qbv_count usage

by Faizal Rahim

These igc bug fixes are sent as a patch series because: 1. The two patches below remove the reliance on using the qbv_count field. "igc: Fix qbv_config_change_errors logics" "igc: Fix reset adapter logics when tx mode change" qbv_count field will be removed in future patch via iwl-next. 2. The patch "igc: Fix qbv tx latency by setting gtxoffset" reuse the function igc_tsn_will_tx_mode_change() which was created in the patch: "igc: Fix reset adapter logics when tx mode change" v1: https://patchwork.kernel.org/project/netdevbpf/cover/20240702040926.3327530… Changelog: v1 -> v2 - Instead of casting to bool, use !! (Simon) - Simplify new functions created. Instead of if.. return true, else return false, use single return. (Simon) - Remove patch "igc: Remove unused qbv_coun" from this series which is targeting to iwl-net. This patch will be sent to iwl-next. (Simon) Faizal Rahim (3): igc: Fix qbv_config_change_errors logics igc: Fix reset adapter logics when tx mode change igc: Fix qbv tx latency by setting gtxoffset drivers/net/ethernet/intel/igc/igc_main.c | 8 +++-- drivers/net/ethernet/intel/igc/igc_tsn.c | 41 ++++++++++++++++------- drivers/net/ethernet/intel/igc/igc_tsn.h | 1 + 3 files changed, 36 insertions(+), 14 deletions(-) -- 2.25.1

2 months

6
15
0 0

[PATCH 3/4] ext4: factor out write end code of inline file

by WangYuli

From: Zhang Yi <yi.zhang(a)huawei.com> Now that the inline_data file write end procedure are falled into the common write end functions, it is not clear. Factor them out and do some cleanup. This patch also drop ext4_da_write_inline_data_end() and switch to use ext4_write_inline_data_end() instead because we also need to do the same error processing if we failed to write data into inline entry. Signed-off-by: Zhang Yi <yi.zhang(a)huawei.com> Reviewed-by: Jan Kara <jack(a)suse.cz> Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Link: https://lore.kernel.org/r/20210716122024.1105856-4-yi.zhang@huawei.com Reviewed-by: Cheng Nie <niecheng1(a)uniontech.com> Signed-off-by: Dandan Zhang <zhangdandan(a)uniontech.com> Signed-off-by: WangYuli <wangyuli(a)uniontech.com> --- fs/ext4/ext4.h | 3 -- fs/ext4/inline.c | 127 ++++++++++++++++++++++++----------------------- fs/ext4/inode.c | 74 +++++++++------------------ 3 files changed, 89 insertions(+), 115 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index fa2579abea7d..6394c8a3803c 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -3083,9 +3083,6 @@ extern int ext4_da_write_inline_data_begin(struct address_space *mapping, unsigned flags, struct page **pagep, void **fsdata); -extern int ext4_da_write_inline_data_end(struct inode *inode, loff_t pos, - unsigned len, unsigned copied, - struct page *page); extern int ext4_try_add_inline_entry(handle_t *handle, struct ext4_filename *fname, struct inode *dir, struct inode *inode); diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index de04bd5fb551..eeb696c85a61 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -741,40 +741,82 @@ int ext4_try_to_write_inline_data(struct address_space *mapping, int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len, unsigned copied, struct page *page) { - int ret, no_expand; + handle_t *handle = ext4_journal_current_handle(); + int no_expand; void *kaddr; struct ext4_iloc iloc; + int ret = 0, ret2; if (unlikely(copied < len) && !PageUptodate(page)) - return 0; + copied = 0; - ret = ext4_get_inode_loc(inode, &iloc); - if (ret) { - ext4_std_error(inode->i_sb, ret); - return ret; - } + if (likely(copied)) { + ret = ext4_get_inode_loc(inode, &iloc); + if (ret) { + unlock_page(page); + put_page(page); + ext4_std_error(inode->i_sb, ret); + goto out; + } + ext4_write_lock_xattr(inode, &no_expand); + BUG_ON(!ext4_has_inline_data(inode)); - ext4_write_lock_xattr(inode, &no_expand); - BUG_ON(!ext4_has_inline_data(inode)); + kaddr = kmap_atomic(page); + ext4_write_inline_data(inode, &iloc, kaddr, pos, copied); + kunmap_atomic(kaddr); + SetPageUptodate(page); + /* clear page dirty so that writepages wouldn't work for us. */ + ClearPageDirty(page); - /* - * ei->i_inline_off may have changed since ext4_write_begin() - * called ext4_try_to_write_inline_data() - */ - (void) ext4_find_inline_data_nolock(inode); + /* + * ei->i_inline_off may have changed since ext4_write_begin() + * called ext4_try_to_write_inline_data() + */ + (void) ext4_find_inline_data_nolock(inode); - kaddr = kmap_atomic(page); - ext4_write_inline_data(inode, &iloc, kaddr, pos, copied); - kunmap_atomic(kaddr); - SetPageUptodate(page); - /* clear page dirty so that writepages wouldn't work for us. */ - ClearPageDirty(page); + ext4_write_unlock_xattr(inode, &no_expand); + brelse(iloc.bh); - ext4_write_unlock_xattr(inode, &no_expand); - brelse(iloc.bh); - mark_inode_dirty(inode); + /* + * It's important to update i_size while still holding page + * lock: page writeout could otherwise come in and zero + * beyond i_size. + */ + ext4_update_inode_size(inode, pos + copied); + } + unlock_page(page); + put_page(page); - return copied; + /* + * Don't mark the inode dirty under page lock. First, it unnecessarily + * makes the holding time of page lock longer. Second, it forces lock + * ordering of page lock and transaction start for journaling + * filesystems. + */ + if (likely(copied)) + mark_inode_dirty(inode); +out: + /* + * If we didn't copy as much data as expected, we need to trim back + * size of xattr containing inline data. + */ + if (pos + len > inode->i_size && ext4_can_truncate(inode)) + ext4_orphan_add(handle, inode); + + ret2 = ext4_journal_stop(handle); + if (!ret) + ret = ret2; + if (pos + len > inode->i_size) { + ext4_truncate_failed_write(inode); + /* + * If truncate failed early the inode might still be + * on the orphan list; we need to make sure the inode + * is removed from the orphan list in that case. + */ + if (inode->i_nlink) + ext4_orphan_del(NULL, inode); + } + return ret ? ret : copied; } struct buffer_head * @@ -955,43 +997,6 @@ int ext4_da_write_inline_data_begin(struct address_space *mapping, return ret; } -int ext4_da_write_inline_data_end(struct inode *inode, loff_t pos, - unsigned len, unsigned copied, - struct page *page) -{ - int ret; - - ret = ext4_write_inline_data_end(inode, pos, len, copied, page); - if (ret < 0) { - unlock_page(page); - put_page(page); - return ret; - } - copied = ret; - - /* - * No need to use i_size_read() here, the i_size - * cannot change under us because we hold i_mutex. - * - * But it's important to update i_size while still holding page lock: - * page writeout could otherwise come in and zero beyond i_size. - */ - if (pos+copied > inode->i_size) - i_size_write(inode, pos+copied); - unlock_page(page); - put_page(page); - - /* - * Don't mark the inode dirty under page lock. First, it unnecessarily - * makes the holding time of page lock longer. Second, it forces lock - * ordering of page lock and transaction start for journaling - * filesystems. - */ - mark_inode_dirty(inode); - - return copied; -} - #ifdef INLINE_DIR_DEBUG void ext4_show_inline_dir(struct inode *dir, struct buffer_head *bh, void *inline_start, int inline_size) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 44a715e6aae1..1e6753084a00 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1415,23 +1415,13 @@ static int ext4_write_end(struct file *file, loff_t old_size = inode->i_size; int ret = 0, ret2; int i_size_changed = 0; - int inline_data = ext4_has_inline_data(inode); trace_ext4_write_end(inode, pos, len, copied); - if (inline_data && - ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) { - ret = ext4_write_inline_data_end(inode, pos, len, - copied, page); - if (ret < 0) { - unlock_page(page); - put_page(page); - goto errout; - } - copied = ret; - ret = 0; - } else - copied = block_write_end(file, mapping, pos, - len, copied, page, fsdata); + + if (ext4_has_inline_data(inode)) + return ext4_write_inline_data_end(inode, pos, len, copied, page); + + copied = block_write_end(file, mapping, pos, len, copied, page, fsdata); /* * it's important to update i_size while still holding page lock: * page writeout could otherwise come in and zero beyond i_size. @@ -1448,10 +1438,9 @@ static int ext4_write_end(struct file *file, * ordering of page lock and transaction start for journaling * filesystems. */ - if (i_size_changed || inline_data) + if (i_size_changed) ext4_mark_inode_dirty(handle, inode); -errout: if (pos + len > inode->i_size && ext4_can_truncate(inode)) /* if we have allocated more blocks and copied * less. We will have blocks allocated outside @@ -1523,7 +1512,6 @@ static int ext4_journalled_write_end(struct file *file, int partial = 0; unsigned from, to; int size_changed = 0; - int inline_data = ext4_has_inline_data(inode); trace_ext4_journalled_write_end(inode, pos, len, copied); from = pos & (PAGE_SIZE - 1); @@ -1531,17 +1519,10 @@ static int ext4_journalled_write_end(struct file *file, BUG_ON(!ext4_handle_valid(handle)); - if (inline_data) { - ret = ext4_write_inline_data_end(inode, pos, len, - copied, page); - if (ret < 0) { - unlock_page(page); - put_page(page); - goto errout; - } - copied = ret; - ret = 0; - } else if (unlikely(copied < len) && !PageUptodate(page)) { + if (ext4_has_inline_data(inode)) + return ext4_write_inline_data_end(inode, pos, len, copied, page); + + if (unlikely(copied < len) && !PageUptodate(page)) { copied = 0; ext4_journalled_zero_new_buffers(handle, page, from, to); } else { @@ -1563,13 +1544,12 @@ static int ext4_journalled_write_end(struct file *file, if (old_size < pos) pagecache_isize_extended(inode, old_size, pos); - if (size_changed || inline_data) { + if (size_changed) { ret2 = ext4_mark_inode_dirty(handle, inode); if (!ret) ret = ret2; } -errout: if (pos + len > inode->i_size && ext4_can_truncate(inode)) /* if we have allocated more blocks and copied * less. We will have blocks allocated outside @@ -3195,7 +3175,7 @@ static int ext4_da_write_end(struct file *file, struct page *page, void *fsdata) { struct inode *inode = mapping->host; - int ret = 0, ret2; + int ret; handle_t *handle = ext4_journal_current_handle(); loff_t new_i_size; unsigned long start, end; @@ -3206,6 +3186,12 @@ static int ext4_da_write_end(struct file *file, len, copied, page, fsdata); trace_ext4_da_write_end(inode, pos, len, copied); + + if (write_mode != CONVERT_INLINE_DATA && + ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA) && + ext4_has_inline_data(inode)) + return ext4_write_inline_data_end(inode, pos, len, copied, page); + start = pos & (PAGE_SIZE - 1); end = start + copied - 1; @@ -3225,26 +3211,12 @@ static int ext4_da_write_end(struct file *file, * ext4_da_write_inline_data_end(). */ new_i_size = pos + copied; - if (copied && new_i_size > inode->i_size) { - if (ext4_has_inline_data(inode) || - ext4_da_should_update_i_disksize(page, end)) - ext4_update_i_disksize(inode, new_i_size); - } - - if (write_mode != CONVERT_INLINE_DATA && - ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA) && - ext4_has_inline_data(inode)) - ret = ext4_da_write_inline_data_end(inode, pos, len, copied, - page); - else - ret = generic_write_end(file, mapping, pos, len, copied, - page, fsdata); - - copied = ret; - ret2 = ext4_journal_stop(handle); - if (!ret) - ret = ret2; + if (copied && new_i_size > inode->i_size && + ext4_da_should_update_i_disksize(page, end)) + ext4_update_i_disksize(inode, new_i_size); + copied = generic_write_end(file, mapping, pos, len, copied, page, fsdata); + ret = ext4_journal_stop(handle); return ret ? ret : copied; } -- 2.43.4

2 months

2
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Re: Crash on boot with CONFIG_JUMP_LABEL in 6.10

by Sam James

Peter Zijlstra <peterz(a)infradead.org> writes: > On Tue, Jul 30, 2024 at 08:36:13PM -0400, matoro wrote: >> On 2024-07-30 09:50, John David Anglin wrote: >> > On 2024-07-30 9:41 a.m., John David Anglin wrote: >> > > On 2024-07-29 7:11 p.m., matoro wrote: >> > > > Hi all, just bumped to the newest mainline starting with 6.10.2 >> > > > and immediately ran into a crash on boot. Fully reproducible, >> > > > reverting back to last known good (6.9.8) resolves the issue. >> > > > Any clue what's going on here? >> > > > I can provide full boot logs, start bisecting, etc if needed... >> > > 6.10.2 built and booted okay on my c8000 with the attached config. >> > > You could start >> > > with it and incrementally add features to try to identify the one >> > > that causes boot failure. >> > Oh, I have an experimental clocksource patch installed. You will need >> > to regenerate config >> > with "make oldconfig" to use the current timer code. Probably, this >> > would happen automatically. >> > > >> > > Your config would be needed to duplicate. Full boot log would also help. >> > >> > Dave >> >> Hi Dave, bisecting quickly revealed the cause here. > > https://lkml.kernel.org/r/20240731105557.GY33588@noisy.programming.kicks-as… Greg, I see tglx's jump_label fix is queued for 6.10.3 but this one isn't as it came too late. Is there any chance of chucking it in? It's pretty nasty. thanks, sam

2 months

3
3
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[PATCH net v1] net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex

by Herve Codina

The carrier_lock spinlock protects the carrier detection. While it is hold, framer_get_status() is called witch in turn takes a mutex. This is not correct and can lead to a deadlock. A run with PROVE_LOCKING enabled detected the issue: [ BUG: Invalid wait context ] ... c204ddbc (&framer->mutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78 other info that might help us debug this: context-{4:4} 2 locks held by ifconfig/146: #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664 #1: c2006a40 (&qmc_hdlc->carrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98 Avoid the spinlock usage and convert carrier_lock to a mutex. Fixes: 54762918ca85 ("net: wan: fsl_qmc_hdlc: Add framer support") Cc: stable(a)vger.kernel.org Signed-off-by: Herve Codina <herve.codina(a)bootlin.com> --- drivers/net/wan/fsl_qmc_hdlc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/wan/fsl_qmc_hdlc.c b/drivers/net/wan/fsl_qmc_hdlc.c index c5e7ca793c43..64b4bfa6fea7 100644 --- a/drivers/net/wan/fsl_qmc_hdlc.c +++ b/drivers/net/wan/fsl_qmc_hdlc.c @@ -18,6 +18,7 @@ #include <linux/hdlc.h> #include <linux/mod_devicetable.h> #include <linux/module.h> +#include <linux/mutex.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/spinlock.h> @@ -37,7 +38,7 @@ struct qmc_hdlc { struct qmc_chan *qmc_chan; struct net_device *netdev; struct framer *framer; - spinlock_t carrier_lock; /* Protect carrier detection */ + struct mutex carrier_lock; /* Protect carrier detection */ struct notifier_block nb; bool is_crc32; spinlock_t tx_lock; /* Protect tx descriptors */ @@ -60,7 +61,7 @@ static int qmc_hdlc_framer_set_carrier(struct qmc_hdlc *qmc_hdlc) if (!qmc_hdlc->framer) return 0; - guard(spinlock_irqsave)(&qmc_hdlc->carrier_lock); + guard(mutex)(&qmc_hdlc->carrier_lock); ret = framer_get_status(qmc_hdlc->framer, &framer_status); if (ret) { @@ -706,7 +707,7 @@ static int qmc_hdlc_probe(struct platform_device *pdev) qmc_hdlc->dev = dev; spin_lock_init(&qmc_hdlc->tx_lock); - spin_lock_init(&qmc_hdlc->carrier_lock); + mutex_init(&qmc_hdlc->carrier_lock); qmc_hdlc->qmc_chan = devm_qmc_chan_get_bychild(dev, dev->of_node); if (IS_ERR(qmc_hdlc->qmc_chan)) -- 2.45.0

2 months

4
3
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[PATCH AUTOSEL 5.4 01/22] drm/amdgpu: fix overflowed array index read warning

by Sasha Levin

From: Tim Huang <Tim.Huang(a)amd.com> [ Upstream commit ebbc2ada5c636a6a63d8316a3408753768f5aa9f ] Clear overflowed array index read warning by cast operation. Signed-off-by: Tim Huang <Tim.Huang(a)amd.com> Reviewed-by: Alex Deucher <alexander.deucher(a)amd.com> Reviewed-by: Christian König <christian.koenig(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index e5c83e164d82a..8fafda87d4ce8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -437,8 +437,9 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_ring *ring = file_inode(f)->i_private; - int r, i; uint32_t value, result, early[3]; + loff_t i; + int r; if (*pos & 3 || size & 3) return -EINVAL; -- 2.43.0

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[PATCH AUTOSEL 6.6 01/83] drm/amd/display: Assign linear_pitch_alignment even for VM

by Sasha Levin

From: Alvin Lee <alvin.lee2(a)amd.com> [ Upstream commit 984debc133efa05e62f5aa1a7a1dd8ca0ef041f4 ] [Description] Assign linear_pitch_alignment so we don't cause a divide by 0 error in VM environments Reviewed-by: Sohaib Nadeem <sohaib.nadeem(a)amd.com> Acked-by: Wayne Lin <wayne.lin(a)amd.com> Signed-off-by: Alvin Lee <alvin.lee2(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 72db370e2f21f..50e643bfdfbad 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1298,6 +1298,7 @@ struct dc *dc_create(const struct dc_init_data *init_params) return NULL; if (init_params->dce_environment == DCE_ENV_VIRTUAL_HW) { + dc->caps.linear_pitch_alignment = 64; if (!dc_construct_ctx(dc, init_params)) goto destruct_dc; } else { -- 2.43.0

2 months

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